Equipment segmented starting control method and device for tobacco production line, equipment, storage medium and product

Abstract

The invention relates to an equipment segmented starting control method and device for a tobacco production line, equipment, a storage medium and a product, and relates to the technical field of tobacco production. The method comprises the steps that under the condition that preheating equipment in a tobacco production line is in a ready state and other equipment is in a shutdown state, associated equipment of the shred moistening machine is started, and material parameters of the shred moistening machine are obtained; the preheating equipment comprises a tobacco shred moistening machine, a tobacco shred drying machine and a moisture regaining machine; according to the material parameters of the shred moistening machine, the material accumulated weight of the feeding machine is determined; under the condition that the material accumulated weight of the feeding machine reaches a first weight threshold value, the winnowing equipment set, associated equipment of the cut tobacco dryer and associated equipment of the moisture regaining machine are controlled to be started; under the condition that the accumulated weight of the materials of the feeding machine reaches a second weight threshold value, the belt weigher and an inclined belt of the feeding machine are controlled to be started, so that starting of the tobacco production line is completed; the second weight threshold is greater than the first weight threshold. By adopting the method, resource waste can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of tobacco production, and in particular to a method, device, equipment, storage medium and product for controlling segmented startup of equipment in a tobacco production line. Background Art

[0002] In traditional cigarette production, production line equipment is started and controlled in a fixed sequence. During the startup process, all equipment on the tobacco production line is operated sequentially. However, the operation of the production line equipment cannot be synchronized with the actual flow of materials. Therefore, this startup method causes the equipment at the back end of the production line to run at no load for a long time while waiting for the arrival of materials, resulting in energy waste and equipment wear. Summary of the Invention

[0003] Based on this, it is necessary to provide a method, device, computer equipment, computer-readable storage medium and computer program product for segmented startup control of a tobacco production line that can reduce resource waste in response to the above technical problems.

[0004] In a first aspect, the present application provides a method for controlling the segmented startup of equipment in a tobacco production line, comprising:

[0005] In a tobacco production line, when the preheating equipment is in a ready state and the remaining equipment is in a stopped state, the associated equipment of the conditioning machine is started and the material parameters of the conditioning machine are obtained; the preheating equipment includes the conditioning machine, the drying machine and the rehumidifying machine; the remaining equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the associated equipment of the drying machine and the associated equipment of the rehumidifying machine;

[0006] Determining the cumulative weight of the material in the feeder according to the material parameters of the conditioning machine; in the tobacco production line, the feeder is located at the outlet of the conditioning machine, and the material processed by the conditioning machine is transported to the feeder for temporary storage;

[0007] When the accumulated weight of the material in the feeder reaches a first weight threshold, the air separation equipment group, the associated equipment of the tow drying machine, and the associated equipment of the moisture conditioning machine are controlled to start;

[0008] When the accumulated weight of the material in the feeder reaches a second weight threshold, the belt scale and the feeder oblique belt are controlled to start to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold.

[0009] In one embodiment, the material parameters include the moisture content of the outlet material, and determining the cumulative weight of the material of the feeder based on the material parameters of the conditioning machine includes:

[0010] When there is material at the outlet of the conditioning machine and the moisture content of the outlet material is greater than or equal to a preset moisture content threshold, start timing to obtain a target time period;

[0011] The accumulated weight of the material in the target time period is determined based on the material parameters.

[0012] In one embodiment, the material parameters further include a moisture content of the inlet material and an actual instantaneous flow rate of the inlet. Determining the cumulative weight of the material of the feeder within the target time period based on the material parameters includes:

[0013] Determining the outlet unit instantaneous flow rate of the conditioning machine according to the moisture percentage of the inlet material, the moisture percentage of the outlet material and the actual instantaneous flow rate of the inlet;

[0014] The accumulated weight of the material of the feeder within the target time period is determined according to the outlet unit instantaneous flow rate and the target time period.

[0015] In one embodiment, the expression corresponding to the outlet unit instantaneous flow rate includes:

[0016] QPV 出料 =QPV 入口实际 × (100%-W 入 ) / (100%-W 出 )

[0017] Among them, QPV 出料 Indicates the instantaneous flow rate per outlet, QPV 入口实际 represents the actual instantaneous flow rate at the inlet, W 入 Indicates the moisture content of the inlet material, W 出 Indicates the moisture content of the export material.

[0018] In one embodiment, the control of starting the belt scale, the feeder inclined belt, the associated equipment of the tow dryer, and the associated equipment of the rehumidifier includes:

[0019] The feeder inclined belt and the belt scale are controlled to start in sequence to feed the material into the belt scale through the feeder inclined belt; so that the tow dryer receives the material conveyed by the belt scale.

[0020] In one embodiment, before starting the associated equipment of the conditioning machine, the method further includes:

[0021] Controlling the silk conditioning machine, the silk drying machine and the moisturizing machine to enter a preheating state;

[0022] When the preheating state end prompts of the silk conditioning machine, the silk drying machine and the moisturizing machine are received respectively, it is determined that the silk conditioning machine, the silk drying machine and the moisturizing machine enter the ready state.

[0023] In a second aspect, the present application further provides a device for segmented startup control of a tobacco production line, comprising:

[0024] The first starting module is used to start the associated equipment of the conditioning machine and obtain material parameters of the conditioning machine when the preheating equipment in the tobacco production line is in a ready state and the other equipment is in a stopped state; the preheating equipment includes the conditioning machine, the drying machine, and the rehumidifying machine; the other equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the associated equipment of the drying machine, and the associated equipment of the rehumidifying machine;

[0025] a weight determination module, configured to determine the cumulative weight of the material in the feeder according to the material parameters of the conditioner; in the tobacco production line, the feeder is located at the outlet of the conditioner, and the material processed by the conditioner is transported to the feeder for temporary storage;

[0026] a second starting module, configured to control the start-up of the air separation equipment group, the associated equipment of the tow dryer, and the associated equipment of the moisture conditioning machine when the cumulative weight of the material in the feeder reaches a first weight threshold;

[0027] The third starting module is used to control the belt scale and the feeder diagonal belt to start when the cumulative weight of the material in the feeder reaches a second weight threshold to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold.

[0028] In a third aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0029] In a tobacco production line, when the preheating equipment is in a ready state and the remaining equipment is in a stopped state, the associated equipment of the conditioning machine is started and the material parameters of the conditioning machine are obtained; the preheating equipment includes the conditioning machine, the drying machine and the rehumidifying machine; the remaining equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the associated equipment of the drying machine and the associated equipment of the rehumidifying machine;

[0030] Determining the cumulative weight of the material in the feeder according to the material parameters of the conditioning machine; in the tobacco production line, the feeder is located at the outlet of the conditioning machine, and the material processed by the conditioning machine is transported to the feeder for temporary storage;

[0031] When the accumulated weight of the material in the feeder reaches a first weight threshold, the air separation equipment group, the associated equipment of the tow drying machine, and the associated equipment of the moisture conditioning machine are controlled to start;

[0032] When the accumulated weight of the material in the feeder reaches a second weight threshold, the belt scale and the feeder oblique belt are controlled to start to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold.

[0033] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0034] In a tobacco production line, when the preheating equipment is in a ready state and the remaining equipment is in a stopped state, the associated equipment of the conditioning machine is started and the material parameters of the conditioning machine are obtained; the preheating equipment includes the conditioning machine, the drying machine and the rehumidifying machine; the remaining equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the associated equipment of the drying machine and the associated equipment of the rehumidifying machine;

[0035] Determining the cumulative weight of the material in the feeder according to the material parameters of the conditioning machine; in the tobacco production line, the feeder is located at the outlet of the conditioning machine, and the material processed by the conditioning machine is transported to the feeder for temporary storage;

[0036] When the accumulated weight of the material in the feeder reaches a first weight threshold, the air separation equipment group, the associated equipment of the tow drying machine, and the associated equipment of the moisture conditioning machine are controlled to start;

[0037] When the accumulated weight of the material in the feeder reaches a second weight threshold, the belt scale and the feeder oblique belt are controlled to start to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold.

[0038] In a fifth aspect, the present application further provides a computer program product, comprising a computer program, which, when executed by a processor, implements the following steps:

[0039] In a tobacco production line, when the preheating equipment is in a ready state and the remaining equipment is in a stopped state, the associated equipment of the conditioning machine is started and the material parameters of the conditioning machine are obtained; the preheating equipment includes the conditioning machine, the drying machine and the rehumidifying machine; the remaining equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the associated equipment of the drying machine and the associated equipment of the rehumidifying machine;

[0040] Determining the cumulative weight of the material in the feeder according to the material parameters of the conditioning machine; in the tobacco production line, the feeder is located at the outlet of the conditioning machine, and the material processed by the conditioning machine is transported to the feeder for temporary storage;

[0041] When the accumulated weight of the material in the feeder reaches a first weight threshold, the air separation equipment group, the associated equipment of the tow drying machine, and the associated equipment of the moisture conditioning machine are controlled to start;

[0042] When the accumulated weight of the material in the feeder reaches a second weight threshold, the belt scale and the feeder oblique belt are controlled to start to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold.

[0043] The above-mentioned tobacco production line equipment segmented start-up control method, device, computer equipment, computer-readable storage medium and computer program product, the method starts the associated equipment of the moisturizing machine located at the front end of the feeding direction of the tobacco production line when the preheating equipment in the tobacco production line is in a ready state and the other equipment is in a stopped state, so that the moisturizing machine is put into material processing work, and obtains the material parameters of the moisturizing machine as data support for subsequent segmented start-up equipment, wherein the preheating equipment includes the moisturizing machine, the dryer and the rehumidifier; the other equipment includes the air selection equipment group, the belt scale, the feeder inclined belt, the associated equipment of the dryer and the associated equipment of the rehumidifier; further, according to the material parameters of the moisturizing machine, the cumulative weight of the material of the feeder is determined, wherein, in the tobacco production line, the feeder is located at the moisturizing machine. At the outlet, the material processed by the silk conditioning machine is transported to the feeder for temporary storage; when the cumulative weight of the material in the feeder reaches the first weight threshold, the air separation equipment group, the associated equipment of the silk drying machine and the associated equipment of the moisturizing machine are controlled to start; when the cumulative weight of the material in the feeder reaches the second weight threshold, the belt scale and the feeder inclined belt are controlled to start to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold. By monitoring the cumulative weight of the material in the feeder, the associated equipment of the processing equipment is in an unstarted state before the cumulative weight of the material meets the production requirements of the processing equipment, avoiding the problem that the equipment at the back end of the production line is in an idling state while waiting for the arrival of materials as soon as the tobacco production line is started, thereby reducing resource waste and alleviating ineffective equipment losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 A schematic diagram of the startup process of a silk production line in the related art;

[0046] Figure 2 1. A schematic flow chart of a method for controlling segmented startup of equipment in a tobacco production line according to one embodiment;

[0047] Figure 3 Schematic diagram of a flow chart of a cumulative weight determination step in one embodiment;

[0048] Figure 4 A schematic flow chart of a method for controlling the segmented startup of a tobacco production line based on cumulative quantity in another embodiment;

[0049] Figure 5 A schematic structural diagram of a silk production line in one embodiment;

[0050] Figure 6 A schematic diagram of the startup process of a silk production line in one embodiment;

[0051] Figure 7 This is a schematic diagram of logic control for segmented startup of a production line in one embodiment;

[0052] Figure 8 A structural block diagram of a device segmented startup control device for a tobacco production line according to one embodiment;

[0053] Figure 9 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0055] As mentioned in the background technology, the equipment startup method of the tobacco silk production line in the related art has the problem of wasting resources and easily causing equipment loss. The inventors have found that the reason for this problem is that the existing silk production line is mainly composed of modules such as the wind selection equipment group, the silk drying equipment group, and the silk conditioning equipment group. After the production is ready, when the production line is started, the equipment starts and runs in the reverse order of the established process, such as Figure 1The figure shows a schematic diagram of the startup process for a tobacco production line in the related art. During the startup process, all equipment in the line operates sequentially, and all equipment is in operation. After the line is started, the tobacco first enters the conditioning equipment section, which includes the ZB202 feeder, the TB201 conditioning machine, the DB201 belt scale, and the ZB203 silo feeder. The feeder pre-fills the ZB202 silo feeder hopper. When the tobacco reaches 50% of the ZB203 silo feeder hopper, the pre-filling is completed, which takes approximately 40 minutes. During these 40 minutes, the two air separation sections, the beating machine, and part of the drying section operate at no load, resulting in inefficient energy consumption and negatively impacting energy conservation and consumption reduction. Furthermore, the material remains in the silo for a long time, resulting in poor quality. This startup method presents the following problems: First, it wastes energy. Material delivery to the production line typically begins at the last stage of equipment, and during this process, much of the equipment idles while waiting for material to arrive. The entire production line lacked a comprehensive energy consumption optimization strategy and failed to implement intelligent start-stop measures based on load status, resulting in ineffective energy consumption. Secondly, this caused equipment wear. Due to the lack of global coordinated control, mechanical components continued to operate under no-load conditions during idling, causing ineffective wear and tear on the equipment, which in turn reduced its service life.

[0056] Based on the above reasons, the present application provides a method for controlling the segmented startup of equipment in a tobacco production line, aiming to reduce resource waste and equipment wear.

[0057] In one embodiment, Figure 2 As shown, a method for controlling the segmented startup of equipment in a tobacco production line is provided. This embodiment uses the method as an example to illustrate a production line control system deployed on a server. It is understood that the method can also be applied to a terminal, or to a system including a terminal and a server, and implemented through interaction between the terminal and the server. In this embodiment, the method includes the following steps:

[0058] Step S202: when the preheating equipment in the tobacco production line is in a ready state and the other equipment is in a shutdown state, start the associated equipment of the conditioning machine and obtain the material parameters of the conditioning machine.

[0059] Among them, the tobacco production line in this embodiment specifically refers to the shredded tobacco production line, which is the core process line of tobacco processing. It processes the tobacco leaf raw materials into finished shredded tobacco through a series of equipment (such as moistening, shredding, drying, etc.).

[0060] Among them, the moisturizer can be a device used to heat and humidify tobacco leaves / cut tobacco, and is usually located at the front end of the production line.

[0061] The material parameters may be physical property parameters of the material after being processed by the conditioning machine, such as moisture content, temperature, flow rate, etc.

[0062] The preheating equipment includes a conditioning machine, a drying machine, and a rehumidifier. The remaining equipment includes an air separation unit, a belt scale, a feeder inclined belt, and associated equipment for the drying machine and the rehumidifier. The associated equipment for the drying machine, such as the conveyor and vibration trough connected to the drying machine, works in conjunction with the drying machine during processing. The associated equipment for the rehumidifier, such as the conveyor and vibration trough connected to the drying machine, works in conjunction with the rehumidifier during processing.

[0063] Optionally, when the production line control system determines that the preheating equipment in the tobacco production line is in a ready state and the other equipment is in a shut-down state, it starts the associated equipment of the moisturizing machine, so that the material to be processed enters from the entrance of the moisturizing machine, and the moisturizing machine in a ready state starts to process the material, and obtains the material parameters of the moisturizing machine in real time to provide data support for the subsequent segmented startup of the production line equipment.

[0064] Step S204: Determine the accumulated weight of the material in the feeder according to the material parameters of the conditioning machine.

[0065] Among them, in the tobacco production line, the feeder is located at the outlet of the conditioning machine, and the materials processed by the conditioning machine are transported to the feeder for temporary storage; among them, the feeder can be an intermediate equipment for temporarily storing and quantitatively transporting materials, usually equipped with a silo and a conveyor bottom belt; among them, the cumulative weight of the material can be the cumulative weight value of the material in the feeder silo.

[0066] Optionally, the production line control system calculates the cumulative weight of the material in the feeder's silo during the production process based on the material parameters of the conditioning machine, such as material flow and material moisture content, as a basis for subsequent segmented startup of the production line equipment.

[0067] Step S206: When the accumulated weight of the material in the feeder reaches a first weight threshold, the air separation equipment group, the associated equipment of the tofu drying machine, and the associated equipment of the moisture conditioning machine are controlled to start.

[0068] The first weight threshold may be a minimum weight value that meets the operating requirements of the air separation equipment group, or may be set according to actual production requirements.

[0069] Among them, the air separation equipment group can be a combination of equipment that uses airflow to sort materials (such as air separators and dust collectors), which is composed of primary air separation equipment, secondary air separation equipment, air conveying and dust removal equipment and related connecting equipment. It is used to separate tobacco and impurities (such as stems and dust) to improve the purity of the material.

[0070] Optionally, when the production line control system monitors that the cumulative weight of the material in the feeder reaches a first weight threshold, it controls the start-up of the air separation equipment group. Specifically, the production line sequentially controls the start-up of the first-level air separation equipment and the second-level air separation equipment; sequentially controls the start-up of the associated equipment of the silk drying machine and the associated equipment of the moisture conditioning machine; and controls the production line to run to the belt scale equipment outlet corresponding to the feeder.

[0071] Step S208: When the accumulated weight of the material in the feeder reaches a second weight threshold, the belt scale and the feeder oblique belt are controlled to start, so as to complete the start-up of the tobacco production line.

[0072] The second weight threshold is greater than the first weight threshold. The second weight threshold may be a minimum weight value that meets the operation requirements of the tofu drying equipment, or may be set according to actual production requirements.

[0073] The feeder inclined belt may be a material conveyor belt with an inclined angle for transporting materials out of the feeder silo.

[0074] Among them, the belt scale can be a conveyor belt device with dynamic weighing function, which is used to measure material flow in real time and feed back to the production line control system to adjust the production rhythm.

[0075] Among them, the tobacco drying machine can be a device for drying tobacco to reduce the moisture content of the tobacco.

[0076] Among them, the rehumidification machine can be an online rehumidification machine, which is used to reheat and rehumidify the tobacco at the outlet of the moisturizing machine, increase the moisture content of the tobacco by directly injecting saturated steam, and meet the requirements of the tobacco temperature and moisture content at the inlet of the tobacco drying machine.

[0077] Optionally, when the production line control system detects that the cumulative weight of the material in the feeder reaches a second weight threshold, the belt scale and the feeder inclined belt are controlled to start, so as to complete the full line startup of the tobacco production line.

[0078] In the above-mentioned equipment segmented start-up control method of the tobacco production line, the method starts the associated equipment of the moisturizing machine located at the front end of the feeding direction of the tobacco production line when the preheating equipment in the tobacco production line is in a ready state and the other equipment is in a stopped state, so that the moisturizing machine is put into material processing work, and obtains the material parameters of the moisturizing machine as data support for subsequent segmented start-up equipment, wherein the preheating equipment includes the moisturizing machine, the dryer and the rehumidifier; the other equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the associated equipment of the dryer and the associated equipment of the rehumidifier; further, according to the material parameters of the moisturizing machine, the cumulative weight of the material of the feeder is determined, wherein, in the tobacco production line, the feeder is located at the outlet of the moisturizing machine, and the material processed by the moisturizing machine is The material is transported to the feeder for temporary storage; when the cumulative weight of the material in the feeder reaches a first weight threshold, the air separation equipment group, the associated equipment of the tobacco drying machine and the associated equipment of the rehumidifying machine are controlled to start; when the cumulative weight of the material in the feeder reaches a second weight threshold, the belt scale and the feeder inclined belt are controlled to start to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold. By monitoring the cumulative weight of the material in the feeder, the associated equipment of the processing equipment is in an unstarted state before the cumulative weight of the material meets the production requirements of the processing equipment, avoiding the problem that once the tobacco production line is started, the equipment at the back end of the production line is in an idling state while waiting for the arrival of materials, thereby reducing resource waste and alleviating ineffective equipment losses.

[0079] In an exemplary embodiment, Figure 3 As shown, the material parameters include the moisture content of the outlet material. Step S204 determines the cumulative weight of the material of the feeder according to the material parameters of the conditioning machine, including:

[0080] Step 302: When there is material at the outlet of the conditioning machine and the moisture content of the outlet material is greater than or equal to a preset moisture content threshold, start timing to obtain a target time period.

[0081] Among them, the moisture content of the outlet material can be the moisture content of the material at the outlet of the silk-drying machine (the unit is usually percentage %), that is, the ratio of the moisture mass in the material to the total mass of the material (moisture + dry matter).

[0082] Among them, the preset moisture content threshold can be the lowest value (such as 15%) reached by the material after being heated and humidified by the conditioning machine. It serves as the basis for detecting the material at the outlet of the conditioning machine. It is determined by process standards or experimental data and used as a judgment condition for triggering timing to ensure that the material reaches the qualified moisture content before entering the subsequent process.

[0083] The target time period may be the time interval starting from when the moisture content of the material at the outlet of the conditioning machine is ≥ a threshold value and ending when a stop condition is met (such as when the weight of the feeder reaches a standard or the timing ends).

[0084] Optionally, when the production line control system detects that there is material at the outlet of the moisturizing machine and the moisture content of the outlet material is greater than or equal to a preset moisture content threshold, it indicates that material is coming out of the outlet of the moisturizing machine and entering the silo of the feeder. The production line control system starts timing to obtain the target time period.

[0085] Step 304: Determine the cumulative weight of the material in the target time period of the feeder based on the material parameters.

[0086] Optionally, the production line control system determines the cumulative weight of the material in the feeder silo within the target time period based on data related to the material flow in the material parameters.

[0087] In this embodiment, the timing starts only when the moisture content of the material at the outlet of the silk conditioning machine is greater than or equal to the preset moisture content threshold value, so as to avoid the silk conditioning machine lacking materials and insufficient moisture at the initial stage of production, which may lead to errors in the calculation of the cumulative weight entering the feeder hopper, causing insufficient material or shortage of material on the belt scale and the feeder diagonal belt; in addition, the cumulative weight of the material in the feeder is dynamically calculated through the material flow data to ensure that there is sufficient material when the downstream equipment (such as the rehumidifying machine and the silk drying machine) is started, thereby eliminating quality problems in subsequent baking processes.

[0088] In an exemplary embodiment, the material parameters further include the moisture content of the inlet material and the actual instantaneous flow rate of the inlet. Step S304 determines the cumulative weight of the material of the feeder within the target time period based on the material parameters, including:

[0089] The outlet unit instantaneous flow rate of the conditioning machine is determined based on the moisture content of the inlet material, the moisture content of the outlet material and the actual instantaneous flow rate of the inlet; the cumulative weight of the material of the feeder within the target time period is determined based on the outlet unit instantaneous flow rate and the target time period.

[0090] Among them, the moisture content of the inlet material can be the moisture content of the material (such as tobacco) entering the moisturizing machine (usually in %), that is, the ratio of the moisture mass in the material to the total mass; among them, the actual instantaneous flow rate at the inlet can be the mass of the material entering the moisturizing machine per unit time detected by the belt scale at the inlet of the moisturizing machine; among them, the unit instantaneous flow rate at the outlet can be the mass of the material discharged from the outlet of the moisturizing machine per unit time.

[0091] Among them, the expressions corresponding to the outlet unit instantaneous flow include:

[0092] QPV 出料 =QPV 入口实际 × (100%-W 入 ) / (100%-W 出 )

[0093] Among them, QPV出料 Indicates the instantaneous flow rate of the outlet unit (in kilograms per hour kg / h), QPV 入口实际 Indicates the actual instantaneous flow rate at the inlet (in kilograms per hour kg / h), W 入 Indicates the moisture content of the inlet material (unit %), W 出 Indicates the moisture content of exported materials (unit: %).

[0094] It should be noted that the expression of the outlet unit instantaneous flow rate is obtained by integrating the following two formulas:

[0095] Instantaneous flow rate of dry tobacco = QPV 入口实际 *(100%-W 入 )

[0096] Instantaneous flow rate of dry tobacco = QPV 出料 *(100%-W 出 )

[0097] Optionally, the production line control system calculates the outlet unit instantaneous flow rate of the conditioning machine based on the inlet material moisture percentage, outlet material moisture percentage, and the actual inlet instantaneous flow rate. Since the calculated outlet unit instantaneous flow rate is in kg / h, it can also be converted to an instantaneous flow rate per second in kg / s to obtain more accurate data. Furthermore, the production line control system can convert the unit instantaneous flow rate to an instantaneous flow rate per second and determine the cumulative weight of the material delivered by the feeder during the target time period based on the product of the outlet instantaneous flow rate per second and the target time period.

[0098] In this embodiment, when calculating the unit instantaneous flow rate at the outlet, the actual instantaneous flow rate at the inlet is corrected according to the moisture percentage of the inlet material and the moisture percentage of the outlet material to ensure the conservation of dry matter mass before and after processing by the silk-rinsing machine, avoid flow calculation errors caused by moisture changes, and take into account the impact of water absorption and weight gain of the material in the silk-rinsing machine, which is more accurate than directly using the inlet flow rate.

[0099] In an exemplary embodiment, the control of starting the belt scale, the feeder inclined belt, the associated equipment of the tofu drying machine, and the associated equipment of the moisture conditioning machine in step S208 includes:

[0100] The associated equipment of the tow dryer and the associated equipment of the rehumidifier are controlled to start in sequence; the inclined belt of the feeder and the belt scale are controlled to start in sequence to feed the material into the belt scale through the inclined belt of the feeder, so that the tow dryer receives the material conveyed by the belt scale.

[0101] Optionally, in a tobacco production line, the feeder's inclined belt and belt scale are connected to the cut tobacco drying equipment. When the accumulated material weight meets the cut tobacco drying machine's operating requirements, the feeder's inclined belt and belt scale are sequentially activated to feed the material from the silo via the feeder's inclined belt to the belt scale. The cut tobacco drying machine then receives the material delivered by the belt scale for subsequent drying. Furthermore, since the cut tobacco drying machine, moisture conditioning machine, and downstream air separation equipment have already been activated when the accumulated material weight reaches a first weight threshold, air separation can be performed on the material processed by the cut tobacco drying machine and moisture conditioning machine, completing the startup of the entire tobacco production line.

[0102] In this embodiment, high-power equipment such as the primary air separation and dust removal fans, the secondary air separation and dust removal fans, and the wire-beating machine only activates when the cumulative weight of material on the feeder reaches a first weight threshold, reducing no-load energy consumption. The belt scale and feeder's inclined belt feeder activate when the cumulative weight of material reaches a second weight threshold, ensuring stable material delivery. The accumulated weight triggers equipment operation in real time, eliminating the need for manual intervention. The air separation equipment group activates at the first threshold, ensuring that the dried material can immediately enter the air separation process, improving overall efficiency.

[0103] In an exemplary embodiment, before starting the associated device of the conditioning machine, step S202 further includes:

[0104] Control the silk conditioning machine, silk drying machine and rehumidifying machine to enter the preheating state; when receiving the preheating state end prompts of the silk conditioning machine, silk drying machine and rehumidifying machine respectively, determine that the silk conditioning machine, silk drying machine and rehumidifying machine enter the ready state.

[0105] The preheating state refers to the state in which the equipment reaches a stable operating temperature or condition through preheating or no-load operation before formal production operation. The end of the preheating state can be indicated by an audible prompt, a light prompt, or a prompt message sent to the production line control system.

[0106] Optionally, the production line control system controls the silk conditioning machine, silk drying machine and silk rehumidifying machine to enter the preheating state. When receiving the preheating state end prompts of the silk conditioning machine, silk drying machine and silk rehumidifying machine respectively, it determines that the silk conditioning machine, silk drying machine and silk rehumidifying machine enter the ready state, indicating that the material is transported into the above equipment and the processing operation can be started directly.

[0107] In this embodiment, the conditioning machine, drying machine, and conditioning machine are all brought to process temperature before material is added, preventing process abnormalities caused by cold equipment coming into direct contact with the material. Preheating is only initiated before actual material addition (for example, when the cumulative weight of the feeder is detected to be approaching a threshold), rather than running the entire line of equipment at no load for extended periods. Furthermore, preheating multiple machines in parallel (preheating the conditioning machine, drying machine, and conditioning machine simultaneously) is more efficient than preheating in series.

[0108] In one embodiment, Figure 4 As shown, a tobacco production line segmented start-up control method based on cumulative quantity is provided, comprising:

[0109] Step 1: After the main equipment of the production line is preheated and enters the ready stage, after the production start-up preparation is completed, the silk conditioning machine control equipment group is started, and the material enters the silk conditioning machine and runs with the material.

[0110] For example, the method of this embodiment is applied to Figure 5 The main startup process diagram of the silk production line shown in the figure is as follows: Figure 6 As shown, the system primarily consists of three components: The air separation equipment group consists of the primary air separation SM1 unit, the secondary air separation SM2 unit, the air dust removal equipment DF201 and DF202, and associated conveying equipment. The tow drying equipment group includes the tow drying machine TT1, the online moisture conditioning machine HT1, the belt scale DB202, the silo feeder ZB203 discharge equipment (diagonal belt and bottom belt), and associated conveying equipment. The conditioning machine group includes the feeding equipment (feed conveyor belt and material storage silo) of the ZB20 silo feeder, the conditioning machine TB201, the feeding belt scale DB201, the feeder ZB202, the conditioning machine inlet moisture meter ZF201, and the conditioning machine outlet moisture meter ZF202.

[0111] Optionally, individual units such as the tow dryer TT1, online conditioning machine HT1, and conditioning machine TB201 are preheated and started separately, entering the preheating phase. Once preheating is complete according to the preheating conditions, these units enter the ready phase, preparing for subsequent production processes.

[0112] Step 2, such as Figure 7 As shown, a schematic diagram of the logic control of the segmented start-up of the production line is provided; the belt scale DB201 detection equipment at the entrance of the silk-weaving machine measures the actual instantaneous flow rate of the material at the entrance, and the moisture meter ZF201 at the entrance of the silk-weaving machine obtains the actual instantaneous moisture value of the material (material parameters). The material passes through the silk-weaving machine, is heated and watered, and when the material reaches the outlet of the silk-weaving machine, and the moisture content of the material at the outlet of the silk-weaving machine is ≥15% (preset moisture percentage threshold), the production line starts timing and calculates the instantaneous flow rate of the material at the outlet of the silk-weaving machine per hour (export unit instantaneous flow rate) and the instantaneous flow rate per second. At the same time, the cumulative weight QPV of the material entering the silo is calculated based on the timing time of the production line. 出料 ;

[0113] Among them, the instantaneous flow rate of the discharged material per hour is QPV 出料 (kg / h) is calculated using the following formula:

[0114] QPV 出料(kg / h)=DB201(kg / h)×(100−ZF201) / (100−ZF202)

[0115] Among them, DB201 represents the instantaneous flow rate of the inlet belt scale, in kg / h; ZF201 represents the actual moisture value of the inlet material, in %; ZF202 represents the actual moisture value of the outlet material, in %. The calculation formula for the instantaneous flow rate per second (kg / s) at the outlet of the conditioning machine is: Instantaneous flow rate per second (kg / s) at the outlet of the conditioning machine = QPV 出料 (kg / h) / 3600; This formula converts the instantaneous flow rate per hour into the instantaneous flow rate per second to facilitate subsequent precise control and calculation.

[0116] Step 3: When the accumulated weight of the silo material of the silo feeder ZB203 (accumulated weight of the material) reaches the set value SP1 (first weight threshold), the primary air separation equipment group and the secondary air separation equipment group are started in sequence.

[0117] Optionally, start the primary air separation equipment group SM201 and DF201, and the secondary air separation equipment group SM202 and DF202 in sequence. The control equipment group for the tofu drying machine TT1 and the online conditioning machine HT1 remain in the ready state, and the associated connecting conveyor equipment operates to the outlet of the belt scale DB202. The belt scale DB202 and its feeder ZB203 oblique belt discharge control equipment group enter the ready state. Based on the calculated instantaneous flow rate (kg / s) at the conditioning machine outlet and the time it enters the silo feeder silo, calculate the cumulative weight (Total kg) of the material entering the silo feeder silo.

[0118] Step 4: When the accumulated weight of the materials reaches the set value SP2 (second weight threshold), the belt scale / feeder inclined belt is started and the production line enters the production stage.

[0119] Optionally, when the ZB203 feeder box cumulative amount Total ≥ ZB203 feeder oblique belt start setting value Total2 (second weight threshold), the ZB203 feeder switches from the ready stage to the production stage, and the ZB203 feeder oblique belt device starts.

[0120] Furthermore, the inventors tested and verified the solution of this embodiment, and found that the power consumption of each device is as follows: two air separation dust removal systems with a rated power of 67.75 kW; two-stage air separation boxes with a rated power of 27.1 kW; wire cutting machine with a rated power of 9.75 kW; and wire drying machine with a rated power of 3.15 kW, for a total rated power of 107.75 kW. The power loss saved is calculated as 40 minutes of equipment idle operation time. The rated power loss saved is calculated as: 107.75 × 6040 = 71.83 kW. For one batch of production per day, the rated power loss saved is 71.83 kW.

[0121] This embodiment implements segmented automatic startup. Based on the cumulative tobacco weights Total1 and Total2 of the ZB203 feeder, the production line automatically starts segment by segment and the ZB203 feeder switches to production. This reduces energy consumption by keeping parts of the air separation and drying sections idle when no tobacco is passing through them, eliminating idle time. The control mechanism has been optimized, with the ZB203 feeder's control mechanism shifting from pre-filling the silo to a minimum accumulated tobacco amount. This reduces moisture fluctuations caused by prolonged exposure of tobacco to the feeder silo.

[0122] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0123] Based on the same inventive concept, embodiments of the present application also provide a tobacco production line equipment segmented startup control device for implementing the aforementioned tobacco production line equipment segmented startup control method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of the embodiments of the tobacco production line equipment segmented startup control device provided below can be found in the above-mentioned limitations of the tobacco production line equipment segmented startup control method, and will not be further elaborated here.

[0124] In an exemplary embodiment, Figure 8 As shown, a device 800 for controlling segmented startup of a tobacco production line is provided, comprising: a first startup module 801, a weight determination module 802, a second startup module 803, and a third startup module 804, wherein:

[0125] The first starting module 801 is used to start the associated equipment of the conditioner and obtain material parameters of the conditioner when the preheating equipment in the tobacco production line is in a ready state and the other equipment is in a stopped state; the preheating equipment includes the conditioner, the dryer, and the moisturizing machine; the other equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the dryer associated equipment, and the moisturizing machine associated equipment;

[0126] The weight determination module 802 is used to determine the cumulative weight of the material in the feeder according to the material parameters of the conditioning machine. In the tobacco production line, the feeder is located at the outlet of the conditioning machine, and the material processed by the conditioning machine is transported to the feeder for temporary storage.

[0127] The second starting module 803 is used to control the start-up of the air separation equipment group, the associated equipment of the tofu drying machine, and the associated equipment of the moisture conditioning machine when the cumulative weight of the material in the feeder reaches a first weight threshold;

[0128] The third starting module 804 is used to control the belt scale and the feeder oblique belt to start when the cumulative weight of the material in the feeder reaches a second weight threshold; the second weight threshold is greater than the first weight threshold.

[0129] Furthermore, the weight determination module 802 is also used to start timing and obtain a target time period when there is material at the outlet of the silk-spinning machine and the moisture content of the outlet material is greater than or equal to a preset moisture content threshold; and determine the cumulative weight of the material of the feeder within the target time period based on the material parameters.

[0130] Furthermore, the weight determination module 802 is also used to determine the outlet unit instantaneous flow rate of the moisturizing machine based on the moisture content of the inlet material, the moisture content of the outlet material and the actual instantaneous flow rate at the inlet; and to determine the cumulative weight of the material of the feeder within the target time period based on the outlet unit instantaneous flow rate and the target time period.

[0131] Furthermore, the third starting module 804 is also used to control the start-up of the feeder inclined belt and the belt scale in sequence to feed the material into the belt scale through the feeder inclined belt; so that the tow dryer receives the material conveyed by the belt scale.

[0132] Furthermore, the first starting module 801 is also used to control the silk conditioning machine, silk drying machine and rehumidifying machine to enter the preheating state; when receiving the preheating state end prompts of the silk conditioning machine, silk drying machine and rehumidifying machine respectively, it is determined that the silk conditioning machine, silk drying machine and rehumidifying machine enter the ready state.

[0133] Each module in the aforementioned tobacco production line equipment segmented startup control device 800 may be implemented in whole or in part via software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor within a computer device in hardware form, or may be stored in a computer device memory in software form, so that the processor can call and execute the corresponding operations of each module.

[0134] In an exemplary embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. Figure 9As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store data such as material parameters and cumulative weight of materials. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a device segmented startup control method for a tobacco production line is implemented.

[0135] Those skilled in the art will understand that Figure 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0136] In one embodiment, a computer device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0137] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0138] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0139] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), quantum computing-based data processing logic devices, artificial intelligence (AI) processors, and the like.

[0140] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0141] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A method for controlling the segmented startup of equipment in a tobacco production line, characterized in that: The method comprises: In a tobacco production line, when the preheating equipment is in a ready state and the remaining equipment is in a stopped state, the associated equipment of the conditioning machine is started and the material parameters of the conditioning machine are obtained; the preheating equipment includes the conditioning machine, the drying machine and the rehumidifying machine; the remaining equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the associated equipment of the drying machine and the associated equipment of the rehumidifying machine; Determining the cumulative weight of the material in the feeder according to the material parameters of the conditioning machine; in the tobacco production line, the feeder is located at the outlet of the conditioning machine, and the material processed by the conditioning machine is transported to the feeder for temporary storage; When the accumulated weight of the material in the feeder reaches a first weight threshold, the air separation equipment group, the associated equipment of the tow drying machine, and the associated equipment of the moisture conditioning machine are controlled to start; When the accumulated weight of the material in the feeder reaches a second weight threshold, the belt scale and the feeder oblique belt are controlled to start to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold.

2. The method according to claim 1, characterized in that The material parameters include the moisture content of the outlet material. The method of determining the cumulative weight of the material of the feeder according to the material parameters of the conditioning machine includes: When there is material at the outlet of the conditioning machine and the moisture content of the outlet material is greater than or equal to a preset moisture content threshold, start timing to obtain a target time period; The accumulated weight of the material in the target time period is determined based on the material parameters.

3. The method according to claim 2, characterized in that The material parameters also include the moisture content of the inlet material and the actual instantaneous flow rate of the inlet. Determining the cumulative weight of the material of the feeder within the target time period based on the material parameters includes: Determining the outlet unit instantaneous flow rate of the conditioning machine according to the moisture percentage of the inlet material, the moisture percentage of the outlet material and the actual instantaneous flow rate of the inlet; The accumulated weight of the material of the feeder within the target time period is determined according to the outlet unit instantaneous flow rate and the target time period.

4. The method according to claim 3, characterized in that The expressions corresponding to the outlet unit instantaneous flow rate include: QPV 出料 =QPV 入口实际 ×(100%-W 入 ) / (100%-W 出 ) Among them, QPV 出料 Indicates the instantaneous flow rate per outlet, QPV 入口实际 represents the actual instantaneous flow rate at the inlet, W 入 Indicates the moisture content of the inlet material, W 出 Indicates the moisture content of the export material.

5. The method according to claim 1, wherein The controlling of the belt scale and the feeder inclined belt starting includes: The feeder inclined belt and the belt scale are controlled to start in sequence to feed the material into the belt scale through the feeder inclined belt; so that the tow dryer receives the material conveyed by the belt scale.

6. The method according to claim 1, characterized in that Before starting the associated equipment of the silk conditioning machine, the method further includes: Controlling the silk conditioning machine, the silk drying machine and the moisturizing machine to enter a preheating state; When the preheating state end prompts of the silk conditioning machine, the silk drying machine and the moisturizing machine are received respectively, it is determined that the silk conditioning machine, the silk drying machine and the moisturizing machine enter the ready state.

7. A tobacco production line equipment segmented start-up control device, characterized in that: The device comprises: The first starting module is used to start the associated equipment of the conditioning machine and obtain material parameters of the conditioning machine when the preheating equipment in the tobacco production line is in a ready state and the other equipment is in a stopped state; the preheating equipment includes the conditioning machine, the drying machine, and the rehumidifying machine; the other equipment includes the air separation equipment group, the belt scale, the feeder inclined belt, the associated equipment of the drying machine, and the associated equipment of the rehumidifying machine; a weight determination module, configured to determine the cumulative weight of the material in the feeder according to the material parameters of the conditioner; in the tobacco production line, the feeder is located at the outlet of the conditioner, and the material processed by the conditioner is transported to the feeder for temporary storage; a second starting module, configured to control the start-up of the air separation equipment group, the associated equipment of the tow dryer, and the associated equipment of the moisture conditioning machine when the accumulated weight of the material in the feeder reaches a first weight threshold; The third starting module is used to control the belt scale and the feeder diagonal belt to start when the cumulative weight of the material in the feeder reaches a second weight threshold to complete the start-up of the tobacco production line; the second weight threshold is greater than the first weight threshold.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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